The Rugby Championship kicks off for 2017 this weekend, starting with old foes New Zealand and Australia facing off in a match that doubles as the first of the three-match Bledisloe Cup series. So where will the two matches be played, what time do they kick off, and who will feature?

Olympics: Nepali girl, 13, wins swim heat after wardrobe glitch

Thirteen-year-old Gaurika Singh, the youngest athlete at the Rio Olympics, won her heat in the women's 100 metres backstroke Sunday after getting into a flap over a torn swimsuit.

The Nepali schoolgirl, who survived the killer earthquake that claimed 9,000 lives in her native country in April last year, quickly changed into a new costume before plunging into the pool for her moment of glory.

Unbeaten fighter Floyd Mayweather has promised to repay any losses talk-show host Jimmy Kimmel suffers if he loses his fight against Conor McGregor.

"He's been texting me and sending me instructions, she said. "Just before my race he told me what to do. I had to ask him whether or not I should change my suit." She did.

Singh's destiny could have tragically altered after being caught on the top floor of a five-storey building in Kathmandu when the magnitude 7.8 quake struck, forcing her to dive under a table for shelter.

"It was scary," said Singh. "I just felt so grateful that I was one to survive through that terrible earthquake. Just to be here and try to do my country proud is amazing."

One of seven Nepali athletes in Rio, Singh has been stopped from entering the Olympic pool by security officials sceptical that the baby-faced girl with braces on her teeth is really an athlete -- until she flashes her accreditation.

Singh herself still has to pinch herself when she comes face to face with her heroes, Australian backstroke world champions Emily Seebohm and Mitchell Larkin, in the training pool.

"When we were training, Mitchell Larkin was swimming in the lane next to me," she said, excitedly. "I tried to speak to him but nothing came out of my mouth. I spoke to Emily in Dubai -- she helped me get my straps on before my race."

Nepal, who have never won a medal at the Summer Olympics, have athletes competing in swimming, archery, athletics, judo and taekwondo in Rio.